82. Which of the following complexes can exhibit optical isomerism? (en = H2N–CH2–CH2–NH2)
(A) cis–Co(NH3)4Cl2
(B) trans–Co(en)2Br2
(C) cis–Co(en)2Cl2
(D) Co(NH3)3Cl3
(E) none of these

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統計: A(0), B(2), C(19), D(1), E(0) #3233348

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